Author: zbao Date: Tue Aug 17 04:14:53 2010 New Revision: 5703 URL: https://tracker.coreboot.org/trac/coreboot/changeset/5703
Log: Feature of lane reversal of AMD RS780 is tested. Signed-off-by: Zheng Bao <[email protected]> Acked-by: Marc Jones <[email protected]> Modified: trunk/src/southbridge/amd/rs780/rs780_gfx.c Modified: trunk/src/southbridge/amd/rs780/rs780_gfx.c ============================================================================== --- trunk/src/southbridge/amd/rs780/rs780_gfx.c Mon Aug 16 22:00:49 2010 (r5702) +++ trunk/src/southbridge/amd/rs780/rs780_gfx.c Tue Aug 17 04:14:53 2010 (r5703) @@ -1178,9 +1178,11 @@ /* Single-port/Dual-port configureation. */ switch (cfg->gfx_dual_slot) { case 0: - /* step 1, lane reversal (only need if CMOS option is enabled) */ + /* step 1, lane reversal (only need if build config option is enabled) */ if (cfg->gfx_lane_reversal) { + set_nbmisc_enable_bits(nb_dev, 0x36, 1 << 31, 1 << 31); set_nbmisc_enable_bits(nb_dev, 0x33, 1 << 2, 1 << 2); + set_nbmisc_enable_bits(nb_dev, 0x36, 1 << 31, 0 << 31); } printk(BIOS_DEBUG, "rs780_gfx_init step1.\n"); @@ -1194,10 +1196,12 @@ break; case 1: - /* step 1, lane reversal (only need if CMOS option is enabled) */ + /* step 1, lane reversal (only need if build config option is enabled) */ if (cfg->gfx_lane_reversal) { + set_nbmisc_enable_bits(nb_dev, 0x36, 1 << 31, 1 << 31); set_nbmisc_enable_bits(nb_dev, 0x33, 1 << 2, 1 << 2); set_nbmisc_enable_bits(nb_dev, 0x33, 1 << 3, 1 << 3); + set_nbmisc_enable_bits(nb_dev, 0x36, 1 << 31, 0 << 31); } printk(BIOS_DEBUG, "rs780_gfx_init step1.\n"); /* step 1.1, dual-slot gfx configuration (only need if CMOS option is enabled) */ -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
